1. University of California, Los Angeles, School of Dentistry, Division of Public Health and Community Dentistry, Los Angeles, CA, USA
2. Yale University School of Medicine, Department of Psychiatry, New Haven, CT, USA
3. The Lundquist Institute at Harbor-UCLA Medical Center, Los Angeles, CA, USA
4. University of California, Los Angeles, Fielding School of Public Health, Department of Biostatistics, Los Angeles, CA, USA
5. University of California, Los Angeles, David Geffen School of Medicine, Department of Medicine, Los Angeles, CA, USA